Question 2

A ball is thrown upward in vacuum at 49 m/sec. The time taken by the ball to reach the highest point is

Solution

initial velocity=u=49 m/s

final velocity=v=0 m/s

acceleration due to gravity=g=-9.8 $$m/s^{2}$$

we know, v=u + gt

=>t=-u/t

t=5 s

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